206123201 has 8 divisors (see below), whose sum is σ = 210371904. Its totient is φ = 201887920.

The previous prime is 206123161. The next prime is 206123207. The reversal of 206123201 is 102321602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206123201 - 2²² = 201928897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206123201.

It is not an unprimeable number, because it can be changed into a prime (206123207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31286 + ... + 37296.

It is an arithmetic number, because the mean of its divisors is an integer number (26296488).

Almost surely, 2^206123201 is an apocalyptic number.

It is an amenable number.

206123201 is a deficient number, since it is larger than the sum of its proper divisors (4248703).

206123201 is an equidigital number, since it uses as much as digits as its factorization.

206123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6711.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 206123201 is about 14356.9913630955. The cubic root of 206123201 is about 590.7117724046.

Adding to 206123201 its reverse (102321602), we get a palindrome (308444803).

The spelling of 206123201 in words is "two hundred six million, one hundred twenty-three thousand, two hundred one".